Flue-cutter attachment.



Patented nine 10, I902. I. s. Hit-KS. FLUE CUTTER ATTACHMENT.

( Application filed Feb. 8, 1901.

(No Model.)

fizb- Jiorrzey UNITED STATES PATENT OFFICE.

IRVING c. HICKS, OF MmuEAPoLis, MINNESOTA.

FLU E-CUTTER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 702,349, dated June 10, 1 902. Application flled February 2,1901. 86l'l8110-45A7Qt r. model.)

To all whom it mag concern: i Y

Be it lgnowu that I, IRVING O. HICKs',-a citi-. zen of the United States of Americ'a,and a resident of the city of Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Flue-Cutter Attachments, of which the following is a specification.

My invention relates to machines designed for cutting fines from boilers,-and has for its object the provision of a flue-cutter which while simple, cheap, and durable in construction shall be exceedingly efficient and positive in operation and by which both time and. labor heretofore consumed in cutting flnes from boilers may be materially reduced'and lessened. To these ends my invention consists in a cutter-shaft, a cutter carried thereby, an eccentric sleeve in which said shaft is mounted and adapted to partial rotation, of means for connecting motive power shaft, respectively, whereby said sleeve and shaft are rotated within the boilerrfiue and said cutter fed against the flue, cutting the same.

More specifically the invention consistsin a cutter-shaft mounted eccentrically in a sleeve and carrying a cutter adapted to cut the boiler-fine, an operating collar or sleeve, 'an\ eccentric ringconnecting said shaft and operating-collar, resistance of the cutter against the flue adapted to retard the rotation of said shaft and torotate said sleeve-and therewith as the device isrotated saidshaft and cutter within said fiue, whe reby in the boiler-flue the cutter isautomatically fed out by the partial revolution of said shaft to out said flue.

The invention consists, further, in means for retarding the revolution of said eccentric sleeve, and thereby rotating said shaft to throw out said cutter against said boiler-flue- The invention consists, further, in the con: structions and combinations .of parts, all as hereinafter described, and particularly pointed out in the claims, and-will .be more readily understood by reference to the accompany- .ing drawings, forming part of this specification, in which-- I Figure 1 is a side elevation of ,a device embodying my invention. Fig. 2 is a longitudinal sectional'view thereof. Fig. 3 is a deto'said sleeve and arms 4 into the sleeve.

tail view showing tor-feed, portions being shown in section ,to more clearly show the construction. Fig.4 is an end view with the .end plate removed. Fig. 5,is a sectional view of .the eccentric sleeve, cutter-shaft, and cutter, illustrating the operation of the cutter. Fig. 6-is a'detail same 'on the cutter-shaft. Fig. 7 i is a secshaft, as shown,- and a cutter 5 is mounted beinthe ends of these respective arms. The

.sleeve 3 is cut away,

described. The forward end of the sleeve 3 is provided with the. recess 6 (see Fig. 4) to permit of the insertion through suitable threaded holes 8 (See Fig. 4..)

, cured by screws passing holes in-the end plate into in the end of the sleeve 3. The operating-sleeve end of the sleeve 3 and is adapted by suitable threads 10 to connect with the operating-shaft of the motor. The sleeve I a slot 11, through which an eccentric ring 12 is sion adapted to fitzin side of the sleeve sleeve 3 being. provided with a bearing for the portion-12" of thering. I I

The sleeve 3 is provided with a groove 13.

Two slots, one on each side,

the sleeve 9 near its inner end. 'Keys'14 are ed to bear against the inclined surface of the tween these arms, its shaft having bearings as shown, to permit a" half-revolution of the arms 4, as hereinafter 9 is provided with.

slipped through "these slots and, extending.- into the groove-13, hold the sleeve 9 in place. A collar 15 is set on the eccentric sleeve 3, as

the eccentric sleeve, the .operatiug collar or sleeve, and the frictional cut- 1 view of the cutter and manner of mounting tional view on the line'X X of Fig. 2 and shows the eccentric ring, cutter-shaft, and eccen- I cutter-shaft,'which-is mounted eccentri'cally in the sleeve 3. Near the forward end of the shaft 2 arms 4 are formed integrally with the of the shaft with the An end plate'7 is seu 9 slips over the rear passed. This ring is provided with an extena slot in the opposite v 9. This ring 12 slips over the end of the shaft 2, as'shownin Fig. 2, the

are provided in loo,

collar 15. The pitch or inclination of these j surfaces is such as to give a gradual'friction,

Figs. 1, 2, and 5, and the half-collar 19 and the sleeve 3.

A steady-collar is slipped over the sleeve 3 and the set collar 21, provided in connection therewith. A lever 23 (shown in Fig. 1) isfulcrumed at 24 on a rod 25, supported on the I handleof the motor-rod, (or othersuitable support.) This lever is forked and its end connected to the friction-collar 17 by suitable set-screws 26 on opposite sides of the collar 17. The operation is as follows: The device is inserted into the end of the flue to be cut off, the end of the flue extending out from the boiler-head'passed under the steady-collar 20, the sleeve 3 pushed into theflue until the cutter reaches the point at which it is desired pushed up against theend of the flue and the I collar 21 set by means of the set-screws 22.

.The, shaft of the motor-is then attached to the operating-sleeve 9. The cutter being in the r position shown in Figs. 1 and 2, the shaft of y the motor being rotated rotates the operatingsleeve 9. The-direct connection betweenthis sleeve 9 beingwith the shaft' 2 through the eccentric ring 12, the shaft is rotated, and being eccentrically mounted in the sleeve 3 its rotation throws out the arms 4, with the cutter 5, until the cutter presses-against the inner periphery of the flue. j :The friction of the cutter retards the revolution of the shaft 2:

Thereupon the sleeve 3 is revolved inside the flue,'-carrying the cutter about the inner surface of the flue. As the-cutter penetrates the flue it is automatically fed outward by the shaft 2 The collars 18, operating against the vthe sleeve 3,

' lever 23 the frictiomcollar inner surface of theflue, revolving freely on prevent friction between the sleeve 3 and the flue, as the whole device revolves'in the flue. Whenit is desired to accelerate the cutting-of the flue and to feed the cutter out more rapidly, by throwing the 17 is thrown into engagement with the collar v15, the rotation of the sleeve 3 retarded, permitting more of thevpower exerted on the sleeve 9'to be dirooted to rotate the 'shaft 2 and throw the cut- -ter more forcibly into contact with theboiler- Many modifications of, my device and many equivalents of parts shown and described will readily suggest themselves,and I do not,there- Patent fore, confine myself to the constructions or details shown or described. Having thus described my invention, I claim as new and desire to secure by Letters loose collar and said The steady-collar is then shaft and operating-sleeve, laradjustably mounted on sleeve, substantially as-described'.

mounted 'on said "main sleeve,

shaft, a 'collar 1. The combination, of a sleeve, a shaft mounted eccentrically therein, a cutter carried' thereby, an operating collar or sleeve loosely mounted on said sleeve, and an eccentric ringconnecting said collar and shaft whereby the rotation of said operating-collar firstrotates said shaft to throw said cutter against the boiler-flue and then rotates said sleeve'and cutter within said flue, substantially as described.

2'. The combination, of a sleeve, a shaft mounted eccentrically therein, a cutter carried thereby, an operating collar or sleeve loosely mounted on said first-named sleeve and adapted to be driven .concentric therewith, and means operatively connecting said shaft, substantially as described.

3. The combinatiomwithasleeve, of ashaft mounted eccentrically therein, a cutter carried thereby, an' operating, collar or sleeve mounted on said first-named sleeve,an eccentric ring connecting said operating collar and shaft,a collar fixed on said first-named sleeve, a friction collar loosely" mounted on said sleeve and adapted to engage said fixed collar, and means for forcing said friction-collar into engagementwith said fixed collar, substantially as described.

4. The combinatiomwith a sleeve, of a shaft mounted eccentrically therein, a cutter mounted .in .arms formed integral with said shaft, an-operating-sleeve loosely mounted .on said first-named sleeve, an eccentric ring mounted on said shaft and connecting said and .a steady-colsaidfirst-named 5. The combination with a'main sleeve, of a shaft mounted eccentrically therein and carrying acutt'er, an operating-sleeve loosely h an, eccentric, ring connecting said operating sleeve and fixed on said main sleeve, a friction-collar loosely'mounted on said oper.- ating-sleeve, and means for throwing said frictionsleeve into frictional contact with said fixed collar, substantially as described.

6. The combination, I a shaft mounted eccentrically therein and carrying a cutter, an operating-sleeve loosely mounted on said main sleeve, an eccentric ring connecting said operating. sleeve and shaft, and a friction feedingdevice whereby the rotation of said main sleeve may be retarded, substantially as described.

7 The combination, with a main sleeve, of a shaftflmounted eccentrically therein and carrying a cutter, an operating-sleeve loosely mountedon said main sleeve, an eccentric ring connecting said shaft, a collar fixed on said main sleeve, a friction-collar loosely mounted on said oper; ating'-sleeve,means for throwing said friction-i sleeve into contact with said fixed collar, and a loose collar provided on the front end of said'main sleeve, substantially as described.

with a main sleeve, of

operating sleeve and- 8. The combination, of a sleeve, a shaft mounted eccentrically therein ,a cutter carried. operating means adapted to operate thereby, v concentric with saidmain shaft whereby said shaft is rotated within said sleeve to a'utomatically throw said cutter into engagement with the boiler-flue and then said sleeve rotated by and with said'shaft revolving said cutter within and against said flue, and a loose collar provided on the front end of ,said sleeve, snbstanti'ally as described.

9. The combination, with a sleeve, a shaft mountedeccentricallytherein,acuttercarried thereby, operating means adapted to operate concentric with respect to said main sleeve whereby said shaft is rotated within said sleeve to automatically throw said cutter into engagement with the boiler-flue and then said sleeve thereby rotated by and with said shaft revolving said cutter within and against the flue, and means whereby the rotation-of said sleeve is retarded to accelerate the rotation of said shaft in said sleeve, substantially as described. n g

10. The combination, with amain sleeve, of a shaft mounted eccentrically therein, a cutter carried thereby, operating means operating concentric with respectto said main sleeve whereby said shaft is rotated to automatic-.

ally throw said cutter into engagement with the boiler-flue and said sleeve then rotated by and with said shaft revolving said 'cutter within and against the flue, means whereby the rotation of said sleeve is retarded to ac-.

celerate the rotation of said shaft in said sleeve,and a loose collar provided on the front end of said sleeve, substantially as described.

11. The combination, with a main sleeve, of a shaft mounted eccentrically, therein and carrying a cutter, an operating-sleeve 9, a key 14 adapted to be passedint-o a slot in said sleeve 9 and rest in a groove in. said main sleeve, a collar 15 fixed on said main sleeve, a frictioncollar 17monnted loosely on said sleeve 9 and adapted to engage with saidfixed collar 15, an;

eccentric ring 12 fixed on said shaft and operatively connected with said operating-sleeve, and a loose collar'18 provided on said main sleeve, said operating-sleeve adapted to be connected with the motive power, substan tially as described. p

12. The combination, ofla sleeve,-a shaft mountedeccentricallytherein,acuttercarried thereby, an operating collar or'sleev'e loosely mounted on said sleeve, an eccentric ring connecting said collar and shaft whereby the rotation ofsaid operating collar or sleeve first rotates said shaft to throw said cutter against the boiler-flue and then..rotates said sleeve and cutter within said flue, and asteady-cob lar mounted on said first-named sleeve, substantially as described. l 13. The combination, of a sleeve a shaft mounted eccentrically therein, a cutter carried thereby,.an operating collar or sleeve loosely mounted on said sleeve, an eccentric firing connecting said collar and shaft whererotation of saidshaft in said main sleeve may be accelerated,and a'steady collar mounted on a shaft mounted. eccentrically therein and carrying a cutter, an operating-sleeve loosely mounted on said main sleeve, an eccentric ring connecting said operating sleeve and rotation of said shaft in said main sleeve may be accelerated, and a collar loosely mounted on the front end of said main sleeve, substantially as described.-

a shaft mounted eccentrically therein-and carrying a cutter, an operating-sleeve loosely mounted on said main sleeve, 'ring connecting said operatingsleeve and shaft, afriction feeding device whereby the rotation of'said shaft in said main sleeve may be accelerated, a steady-collar'mounted on on the front end of said main sleeve, substantially as described. v

17. The combination, of a sleeve, a shaft mounted eccentrically therein, a cutter carried thereby, operating means whereby said shaft is rotated withinsaid sleeve to throw flue and said. sleeve rotated with said shaft friction feeding .device whereby the rotation of said shaft within said sleeve may be accelerated, substantially as described.

a shaft mounted eccentrically there'in,a cut ter carried thereby, operating means where by said shaft is rotated within said sleeve to throw said cutter into engagement with the boiler-flue and said sleeve then rotated by to rotate revolving saidcutter within and of said main sleeve maybe retarded to accelerate the rotation of said shaft in said sleeve, a aloose collar provided'on the front end -of said main sleeve, substantially as described.

19. The combination, with-a main sleeve, 'of

ter carried. thereby, operating means adapted to rotate in a forward direction first-rotating said shaft within said sleeve and then carr'ying saidsleeve with said shaft automatica steady-.

ring connecting said operating sleeve and' shaft, a friction feeding device whereby the.

16. The combination,with a main sleeve, of i an eccentric said cutter into engagement with the boiler-- 18. The combination,with a main sleeve, of

and with said; shaft as said shaft continues.

a shaftmounted eccentricallythereima cut-- said main sleeve, substantially as described.

15. The combination,with a main sleeve, of P shaft, a friction feeding device whereby the said main sleeve, and a collar loosely mounted i revolving said cutter within said flue, and a against the flue, means whereby theirotation 4 sleeve, and a steady-collar mounted on said vally feeding said cutter steady-collar mounted substantially as described.

20. The combination, of a main sleeve, a

shaft mounted-eccentrically therein, a cutter carried eccentrically thereby, and an operating collar vor sleeve loosely mounted on said 1 main sleeve and operatively connected with said shaft, said operating-collar operating concentric with respect to said main sleeve,

whereby the forward rotation of said operate tates said main sleeve and shaft together ing-collar first' rotates said shaft within said main sleeve to throw said cutter into operative contact with the boiler-flue and then rowithin said flue carrying said cutter around against the inner surface thereof, su'bstantially as described. 2o

21. The combination, of a main sleeve, a

shaft mountedeccentrically therein, a cutter carried eccentrically thereby, collar or sleeve looselymountedon said main an operating sleeve and'operatively connected with said shaft, said operating-collar operating concentric ,with respect to said main sleeve, whereby the forward rotation of said operating-collar first rotates said shaft within said main sleeve. to throw said cutter into operative contact with the boiler-flue and 'thenrotates said shaft. and sleeve together within said flue carrying, said cutter around against the inner surface-thereof, and means in connection with said mainsleeve whereby the rotation thereof may be retarded to accelerate the rotation of said shaft within said inain sleeve, substantially as described.

V In testimony whereof I have hereunto set my, hand, at -Minneapolis, in the county of Hennepin and State of Minnesota, this 17th day of December, A51). 1900,

. IRVING o. HICKS. y In presence of v FREDERICK S. LYON, I H. MrS'rooKI G. 

